Primitive anaerobic prokaryotic cell (without nucleus, does not use oxygen in its respiration and does not perform photosynthesis).
Cell where part of its membrane has invaginated forming a nucleus (primitive Eukaryote)
Eukaryotic cell incorporates (phagocytic) aerobic bacteria (they use oxygen in their respiration)
Phagocytized aerobic bacteria become mitochondria.
Cell with nucleus and mitochondria, consumes (phagocyte) photosynthetic prokaryotic.
Photosynthetic prokaryotes become chloroplasts.
Eukaryotic, aerobic and photosynthetic cell (with a nucleus, it uses oxygen to oxidize its food in mitochondria and carries out photosynthesis in chloroplasts).
Aerobic eukaryotic cell (with nucleus and mitochondria that uses oxygen in its respiration)
